Science #2 Review

Front

What is speed?

Back

Speed is how fast an object moves. It is the distance traveled in a certain amount of time.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object.

Front

Which object has the least speed: a cyclist, a book, a skateboard, or a dog?

Back

A book lying on a table has the least speed.

Front

What is gravity?

Back

Gravity is the invisible force that pulls objects toward the Earth.

Front

What happens to a marble on a ramp?

Back

The height of the ramp affects how fast the marble rolls down.

Front

Which ramp height results in the fastest marble speed?

Back

Ramp A results in the fastest marble speed.

Front

What force causes a child on a seesaw to move downward?

Back

The force of gravity causes the child to move downward.

Front

What happens when a drum is hit?

Back

The drum skin vibrates, producing sound.

Front

What is vibration?

Back

Vibration is a rapid back-and-forth movement that creates sound.

Front

What is potential energy?

Back

Potential energy is stored energy based on an object's position.